I have an iMac and MacBook Pro which are synced using .Mac and both are running Leopard. I noticed on the iMac first, and then the MacBook, that I can no longer administer my computers. I am sure I used to be able to administer using my login account (I have an account for my wife which is never used but no others). How can I switch the rights back on if I can't administer the computer??! Any help much appreciated - I want to avoid yet another complete re-installation...